Iphone hardware and software solutions in 24 hrs - Page 104 - GSM-Forum

Wites OM Tesla · 11-02-2011, 17:24

Quote:

Originally Posted by kostelectronics

other prbolem:

iPhone 4: All sounds are very loud biased (sounds like too high gain). when i reduce volume becomes better, but still biased. when i connect earphone, the same there. when i try to make a call, the mic makes a backcoupling and i hear only a loud beeeeeeeeeeeep. in the earphone also the same!

it was an water damage. i removed the metal shield around the NAND-Flash for cleaning. before i had no backligt, sound was ok i think, i can't say! which ic should i try to reball first??

what can that be? if somebody can help me, you get my greatest respect!!!

Try other mic if same possible some capacitors om mic ways are oxidized.
If audio codec ic is glued you don't have to reball it.

Quote:

Originally Posted by kostelectronics

It was an water damage.

And why you say that it was?

kostelectronics · 11-02-2011, 18:46

@wites:

i tryed this Board in a complete other case, same problem. what you mean with "And why you say that it was?" ...it's still a water damage!

Wites OM Tesla · 11-02-2011, 21:33

Quote:

Originally Posted by kostelectronics

@wites:

i tryed this Board in a complete other case, same problem. what you mean with "And why you say that it was?" ...it's still a water damage!

You said "it was an water damaged" it is like in past.
Try without mic connected & tell if same.

kostelectronics · 11-02-2011, 23:46

i disconnected the dock-flex and i have the same over the earphone! looks like the speaker is shorted with the mic....

Wites OM Tesla · 11-03-2011, 10:08

Quote:

Originally Posted by kostelectronics

i disconnected the dock-flex and i have the same over the earphone! looks like the speaker is shorted with the mic....

Can you precise where you hear that beeep in speaker or earspeaker?

kostelectronics · 11-03-2011, 10:25

in both. because this i think there are a short on the speaker / mic ways....

Wites OM Tesla · 11-03-2011, 10:35

Quote:

Originally Posted by kostelectronics

in both. because this i think there are a short on the speaker / mic ways....

Check for oxidized caps varistor's near dock connector & U5.

By wites13 at 2011-11-03
Remove 2 varistors near U5.

guruduttgarg · 11-03-2011, 13:41

i phone 3gs not charging solution send me sir plz

Wites OM Tesla · 11-03-2011, 14:16

Quote:

Originally Posted by guruduttgarg

i phone 3gs not charging solution send me sir plz

Here link go here http://forum.gsmhosting.com/vbb/f631...ml#post7754262
Second not charging solution coming soon.

bugis083 · 11-11-2011, 02:44

Hi everyone, I bought iPhone which were stuck on recovery mode, it was just listed by the seller on the ebay auction, for the cheap price, so I bought it with the hope it need just JB.
When i realized that it is not the usb dock not the usb wire, nor not the software issue, I went to open it up to see what's going from inside. By the way, iPhone 3g when connected to usb, shows Recovery mode screen, that's all.
So near the usb dock 4" connector I saw three missing resistors...
Is there a chance to make some jumper, or something like, which throw me out of this sticky problem?
There are three close pictures how it looks

http://img510.imageshack.us/img510/1609/dsc00757t.jpg
http://img189.imageshack.us/img189/5619/dsc00758e.jpg
http://img337.imageshack.us/img337/7726/dsc00759a.jpg

any suggestions would be much appreciated, Thanks

habeshfreak · 11-15-2011, 22:02

I have iphone 4 on 4.3.1 today when i restarted it is stuck on activation screen when i connect to computer it asks for passcode and i can't give passcode b/c it is on activation
screen help pls

MeiTeS · 11-16-2011, 14:12

hi... i have iphone4 with water damage.. camera not work (not open) changed the camera.. fully cleaned.. still not open the camera.. this link not help me. give me solution please... thx

rosemary33 · 11-17-2011, 04:49

I have been doing small repairs for a few months butt they have been easy problems batt,cabels,LCD,dig,pretty much easy ones. Now have 3G no power and have checked batt,connections to board and need to know were to check on board volts ohms so on to repair. Is there like a known list were to start to figure out problem.from what I've read on this site seems like u all know what's going on.it would be really help full and I'm really new on phones Internet but have done tv's for long time let me know if I can help thanks.

Wites OM Tesla · 11-17-2011, 12:00

Quote:

Originally Posted by rosemary33

I have been doing small repairs for a few months butt they have been easy problems batt,cabels,LCD,dig,pretty much easy ones. Now have 3G no power and have checked batt,connections to board and need to know were to check on board volts ohms so on to repair. Is there like a known list were to start to figure out problem.from what I've read on this site seems like u all know what's going on.it would be really help full and I'm really new on phones Internet but have done tv's for long time let me know if I can help thanks.

When you have dead phone power problem,you check voltages without LCD
power on phone and check this voltage http://forum.gsmhosting.com/vbb/f631...ml#post7851700
but be careful to not short something to GND.

pupilo · 11-17-2011, 12:18

I have an iphone 4 after falling not called someone can help me more

11-11-2011, 02:44	#1555 (permalink)
bugis083 Freak Poster Join Date: Jun 2011 Location: Lithuania Age: 34 Posts: 214 Member: 1593210 Status: Offline Thanks Meter: 1	iPhone 3g can't connect to pc but power up to restore mode Hi everyone, I bought iPhone which were stuck on recovery mode, it was just listed by the seller on the ebay auction, for the cheap price, so I bought it with the hope it need just JB. When i realized that it is not the usb dock not the usb wire, nor not the software issue, I went to open it up to see what's going from inside. By the way, iPhone 3g when connected to usb, shows Recovery mode screen, that's all. So near the usb dock 4" connector I saw three missing resistors... Is there a chance to make some jumper, or something like, which throw me out of this sticky problem? There are three close pictures how it looks http://img510.imageshack.us/img510/1609/dsc00757t.jpg http://img189.imageshack.us/img189/5619/dsc00758e.jpg http://img337.imageshack.us/img337/7726/dsc00759a.jpg any suggestions would be much appreciated, Thanks

11-17-2011, 04:49	#1558 (permalink)
rosemary33 Junior Member Join Date: Nov 2011 Posts: 19 Member: 1688732 Status: Offline Thanks Meter: 0	Need some help please I have been doing small repairs for a few months butt they have been easy problems batt,cabels,LCD,dig,pretty much easy ones. Now have 3G no power and have checked batt,connections to board and need to know were to check on board volts ohms so on to repair. Is there like a known list were to start to figure out problem.from what I've read on this site seems like u all know what's going on.it would be really help full and I'm really new on phones Internet but have done tv's for long time let me know if I can help thanks.

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11-02-2011, 18:46	#1547 (permalink)
kostelectronics No Life Poster Join Date: Apr 2009 Location: Wikon, Switzerland Posts: 941 Member: 1012778 Status: Offline Thanks Meter: 245	@wites: i tryed this Board in a complete other case, same problem. what you mean with "And why you say that it was?" ...it's still a water damage!

11-02-2011, 23:46	#1549 (permalink)
kostelectronics No Life Poster Join Date: Apr 2009 Location: Wikon, Switzerland Posts: 941 Member: 1012778 Status: Offline Thanks Meter: 245	i disconnected the dock-flex and i have the same over the earphone! looks like the speaker is shorted with the mic....

11-03-2011, 10:25	#1551 (permalink)
kostelectronics No Life Poster Join Date: Apr 2009 Location: Wikon, Switzerland Posts: 941 Member: 1012778 Status: Offline Thanks Meter: 245	in both. because this i think there are a short on the speaker / mic ways....

11-03-2011, 13:41	#1553 (permalink)
guruduttgarg Junior Member Join Date: Jul 2006 Posts: 32 Member: 308909 Status: Offline Thanks Meter: 3	i phone 3gs not charging solution send me sir plz

11-15-2011, 22:02	#1556 (permalink)
habeshfreak Freak Poster Join Date: Apr 2009 Location: Addis ababa Posts: 142 Member: 1002335 Status: Offline Sonork: 175 Thanks Meter: 9	I have iphone 4 on 4.3.1 today when i restarted it is stuck on activation screen when i connect to computer it asks for passcode and i can't give passcode b/c it is on activation screen help pls

11-16-2011, 14:12	#1557 (permalink)
MeiTeS Freak Poster Join Date: Jul 2009 Location: Israel, Tel-aviv Posts: 114 Member: 1085383 Status: Offline Thanks Meter: 14	hi... i have iphone4 with water damage.. camera not work (not open) changed the camera.. fully cleaned.. still not open the camera.. this link not help me. give me solution please... thx

11-17-2011, 12:18	#1560 (permalink)
pupilo Freak Poster Join Date: May 2011 Location: europa Posts: 131 Member: 1580957 Status: Offline Thanks Meter: 8	I have an iphone 4 after falling not called someone can help me more